Laboratory Medicine
Laboratory Medicine Summary
Preparation before surgery includes obtaining an updated audiogram that reflects the patient’s most current state of hearing. Any CT or MRI scans should be available for review in the operating room should the surgeon require a visual reference.
Media Gallery
-
Endaural incision to widen membranous external auditory canal.
-
Injection points for local anesthetic/vasoconstrictor prior to exploratory tympanostomy.
-
Endaural speculum used to assist in retraction of tissues as incision through the incisura terminalis is made.
-
Outline of canal skin incisions to create tympanomeatal flap.
-
Rosen needle used to facilitate elevation of tympanomeatal flap as entry is made into the middle ear.
-
Bony scutum is curetted away to gain additional middle ear exposure.
-
Cross-section of the middle and inner ear.
-
Tympanic membrane (TM): pars flaccida (superior to insertion manubrium) and pars tensa (remainder of TM).
of
8